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o ;ju � @ s~ d Z ddlmZmZmZ ddlmZ ddlmZm Z m Z ddl m Z ddl mZ ddlZddlZdZG d d � d eeee�ZdS ) z/Module containing a database to deal with packs� )� FileDBBase� ObjectDBR� CachingDB)� LazyMixin)� BadObject�UnsupportedOperation�AmbiguousObjectName)� PackEntity)�reduceN)�PackedDBc s� e Zd ZdZdZ� fdd�Zdd� Zdd� Zd d � Zd d � Z d d� Z dd� Z dd� Z dd� Z dd� Zd dd�Zdd� Zd d � Z� ZS ) r z-A database operating on a set of object packsi� c s t � �|� d| _d| _d S �Nr )�super�__init__� _hit_count� _st_mtime)�self� root_path�� __class__� �A/opt/saltstack/salt/lib/python3.10/site-packages/gitdb/db/pack.pyr ) s zPackedDB.__init__c C s$ |dkrt � | _| jdd� d S d S )N� _entitiesT)�force)�listr � update_cache)r �attrr r r � _set_cache_3 s �zPackedDB._set_cache_c C s | j jdd� dd� d S )Nc S s | d S r r )�lr r r �<lambda>: � z)PackedDB._sort_entities.<locals>.<lambda>T)�key�reverse)r �sort�r r r r �_sort_entities9 s zPackedDB._sort_entitiesc C sn | j | j dkr | �� | jD ]#}|d |�}|dur2|d d7 < | j d7 _ |d |f S qt|��)a� :return: tuple(entity, index) for an item at the given sha :param sha: 20 or 40 byte sha :raise BadObject: **Note:** This method is not thread-safe, but may be hit in multi-threaded operation. The worst thing that can happen though is a counter that was not incremented, or the list being in wrong order. So we safe the time for locking here, lets see how that goesr � N� )r �_sort_intervalr$ r r )r �sha�item�indexr r r � _pack_info< s � zPackedDB._pack_infoc C s& z| � |� W dS ty Y dS w )NTF)r+ r )r r( r r r � has_objectY s �zPackedDB.has_objectc C � | � |�\}}|�|�S �N)r+ Z info_at_index�r r( �entityr* r r r �infoa � z PackedDB.infoc C r- r. )r+ Zstream_at_indexr/ r r r �streame r2 zPackedDB.streamc c s> � | � � D ]}|�� }|j}t|�� �D ]}||�V qqd S r. )�entitiesr* r( �range�size)r r0 r* Z sha_by_indexr r r �sha_iteri s � ��zPackedDB.sha_iterc C s dd� | j D �}tdd� |d�S )Nc S s g | ] }|d � � �� �qS �r& )r* r6 ��.0r) r r r � <listcomp>s � z!PackedDB.size.<locals>.<listcomp>c S s | | S r. r )�x�yr r r r t r z PackedDB.size.<locals>.<lambda>r )r r )r Zsizesr r r r6 r s z PackedDB.sizec C s t � �)z�Storing individual objects is not feasible as a pack is designed to hold multiple objects. Writing or rewriting packs for single objects is inefficient)r )r Zistreamr r r �storez s zPackedDB.storeFc C s� t �| �� �}|s|j| jkrdS |j| _tt�t j�| �� d���}dd� | j D �}|| D ]}t |�}| j � |� � � � ||�� jg� q/|| D ]&}d}t| j �D ]\}} | d � � �� |kre|} nqS|dkslJ �| j |= qJ| �� dS )a� Update our cache with the actually existing packs on disk. Add new ones, and remove deleted ones. We keep the unchanged ones :param force: If True, the cache will be updated even though the directory does not appear to have changed according to its modification timestamp. :return: True if the packs have been updated so there is new information, False if there was no change to the pack databaseFz pack-*.packc S s h | ] }|d � � �� �qS r8 )�pack�pathr9 r r r � <setcomp>� r< z(PackedDB.update_cache.<locals>.<setcomp>���r& T)�os�statr �st_mtimer �set�globrA �joinr r �appendr@ r6 r* Z sha_to_index� enumerater$ ) r r rE Z pack_filesZour_pack_filesZ pack_filer0 Z del_index�ir) r r r r � s( " � zPackedDB.update_cachec C s dd� | j D �S )z=:return: list of pack entities operated upon by this databasec S s g | ]}|d �qS r8 r r9 r r r r; � s z%PackedDB.entities.<locals>.<listcomp>)r r# r r r r4 � s zPackedDB.entitiesc C sf d}| j D ]%}|d �� �||�}|dur*|d �� �|�}|r(||kr(t|��|}q|r/|S t|��)a� :return: 20 byte sha as inferred by the given partial binary sha :param partial_binsha: binary sha with less than 20 bytes :param canonical_length: length of the corresponding canonical representation. It is required as binary sha's cannot display whether the original hex sha had an odd or even number of characters :raise AmbiguousObjectName: :raise BadObject: Nr& )r r* Zpartial_sha_to_indexr( r r )r Zpartial_binshaZcanonical_length� candidater) Z item_indexr( r r r �partial_to_complete_sha� s �z PackedDB.partial_to_complete_sha)F)�__name__� __module__� __qualname__�__doc__r' r r r$ r+ r, r1 r3 r7 r6 r? r r4 rN � __classcell__r r r r r s -r )rR Z gitdb.db.baser r r Z gitdb.utilr Z gitdb.excr r r Z gitdb.packr � functoolsr rD rH �__all__r r r r r �<module> s
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